SAP-C02 Question 597
Select 2A company has deployed a multi-region application that uses Route 53 for DNS management. The application requires low-latency access for users in each region and automatic failover to a different region in case of an application outage. Which combination of Route 53 routing policies should be used to achieve this?
- A
Latency routing policy
- B
Geolocation routing policy
- C
Failover routing policy
- D
Weighted routing policy
- E
Multivalue answer routing policy
Show answer and explanation
Correct answers: A, C
Explanation
To meet the requirements of low latency and automatic failover, the correct combination of Route 53 routing policies is latency and failover. The latency routing policy ensures users are directed to the closest region with the lowest latency, while the failover routing policy automatically redirects traffic to a secondary region in case of an outage in the primary region. The other options do not fully address both the latency and failover requirements.
- A. Correct.
Correct: The latency routing policy ensures that users are directed to the region with the lowest latency for their requests, improving performance.
- B. Incorrect.
Incorrect: The geolocation routing policy routes traffic based on the user's geographic location, but it does not optimize for latency or provide failover capabilities.
- C. Correct.
Correct: The failover routing policy ensures that traffic is redirected to a secondary region if the primary region becomes unavailable, providing high availability.
- D. Incorrect.
Incorrect: The weighted routing policy distributes traffic based on assigned weights but does not guarantee low latency or automatic failover.
- E. Incorrect.
Incorrect: The multivalue answer routing policy returns multiple IP addresses for DNS queries and relies on the client to choose, which does not address the low latency or failover requirements of the scenario.